Building a heavy duty magnet charger

(Page 6 of 6)

January/February 1989
By John D. Rex 
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The reader should refer to the March 1987 edition of GEM, pages 26 and 27, for further examples of magneto placement on the charger. Once the magneto is positioned, charging is accomplished by closing the switch and letting the current build to a maximum as indicated on the ammeter. This takes only a few seconds. Additional time does nothing but drain the battery. During charging, it is not necessary to tap the magnets, 'wipe the poles', or perform the other mysterious procedures indicated in some old literature on magnets and magnetos. These procedures were used in the old days because many chargers were inadequate and magnetic theory was not well understood. After charging, the polarity can be verified by the use of a compass.

RELATED CONTENT

Remember, if the magneto is dismantled or the magnets are removed, recharging after assembly will probably be required to restore full performance. For more information on this, see the November '87 GEM on 'How Often Do Magnetos Need Recharging?'

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